FSharp build fails in MSBuild, but works ok in Visual Studio

Question

I have a number of projects in my solution, among which also a F# project. Everything builds fine in Visual Studio, but when I try to build it with MSBuild on my TeamCity se

Answer 1

I had a problem today with the same symptoms on my build server. What fixed it for me was starting up VS on the build server and creating a F# project, which installed the F# tooling. It was not installed completely by default.

Answer 2

You can create the target "Clean" in your project:

<Target Name="Clean">
    <MSBuild
    Targets="Clean"
    Projects=".\MySolutionDir\MySol.sln"
    Properties="Configuration=$(Configuration)"  />
</Target>

Or you can modify the command line to something like this:

MSBuild MyProj.proj /p:Configuration=Release;Targets=Clean

Answer 3

We had the same problem with AutoFixture.AutoFoq and ZeroToNine.

What we did was to modify the .fsproj files.

First, you have to add

<TargetFSharpCoreVersion>4.3.0.0</TargetFSharpCoreVersion>

to the first <PropertyGroup>.

Second, you replace

<Import Project="$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets" Condition=" Exists('$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets')" />

with this:

<Choose>
  <When Condition="'$(VisualStudioVersion)' == '11.0'">
    <PropertyGroup>
      <FSharpTargetsPath>$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets</FSharpTargetsPath>
    </PropertyGroup>
  </When>
  <Otherwise>
    <PropertyGroup>
      <FSharpTargetsPath>$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets</FSharpTargetsPath>
    </PropertyGroup>
  </Otherwise>
</Choose>
<Import Project="$(FSharpTargetsPath)" Condition="Exists('$(FSharpTargetsPath)')" />

Finally, replace

<Reference Include="FSharp.Core, Version=4.3.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">

with

<Reference Include="FSharp.Core, Version=$(TargetFSharpCoreVersion), Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">

If you want to see this in context, you can review the ZeroToNine commit that does the above.